Aircraft



FIG. 1 is a side perspective view of an aircraft according to the present design;

FIG. 2 is a top plan view of the aircraft shown in FIG. 1;

FIG. 3 is a bottom plan view of the aircraft shown in FIG. 1;

FIG. 4 is a front elevation view of the aircraft shown in FIG. 1;

FIG. 5 is a rear elevation view of the aircraft shown in FIG. 1; and,

FIG. 6 is a left side elevation view of the aircraft shown in FIG. 1, the right side elevation view being a mirror image thereof.

The broken lines shown herein are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an aircraft, as shown and described. 